Waste-pipe trap and valve



No ModeL) P. HARVEY.

WASTE PIPE` TRAP AND VALVE. No. 316,962. Patented Mays, 1885.

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` citizen of the United States, and residing at VneXed and followingspecification.

I UNITED STATES PATENT LEEicE.,

PATRICK HARVEY, OF CHICAGO, ILLINOIS.A

WASTE-PIPE TRAP AND VALVE.

SPECIFICATION forming part; of Letters Patent' No. 316,962,'da ted May5, 1885.

Application filed September 22, 1884.

To a/ZZ wtOm t may concern.: i

Be it known that I, PATRICK HARVEY, a

Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Waste Pipe Traps and Valves,which are fully set forth in the an- The purposes of this invention areto provide a waste-pipe with a valve therein which shall obviate thenecessity of the use of aplug in the sink or basin to which it isattached 5 to prevent the return of sewer-gas through the waste-pipe bypreventing the emptying of the trap, as often happens by siphoning orsuction arising by partial vacuum produced by any means beyond the trap;to remove the necessity of an overflow-pipe from the bowl, and toaccomplish all these purposes Without producing a standing column ofwater which may become dead and offensive or leave lth from thewaste-water in the pipe or its connection out of the course of t-hewaste-current which might carry it off.

Figure 1 is a vertical section of a bowlwith my invention connected, thewaste-pipe including an ordinary form of water-trap. Fig. 2 is avertical section of a bowl with my invention attached, there being nowater-trap in the waste-pipe except that afforded by the valve, which isthe main feature of my invention.

A is the bowl. B is the slab or table in which it is sustained.

C is the waste-pipe leading to the rvalvechamber D.

E is the valve, preferably of rubber, adapted to seat over the open endof the waste-pipe C, and either by its Weight,when playing vertically,or by the shaping of the diaphragm hereinafter named, when playinghorizontally, adapted to be normally on its seat without eX-` teriorpressure. y

E is a metal disk fitting, but not too closely, the opening D in thewall of the valve-chamber D. It serves to limit the straining andstretching of the diaphragm E2, which is preferably of rubber or similarwater-proof and flexible material, and is of such size as to completely,cover the opening D and form (No model.)

the wall of the chamberl at that part. secured to the remainder of thewall by the metal ring E3, which is placed outside of the diaphragm andbolted to the wall of the charnber.

E4 is the valve-stem, which passes through the diaphragm E2, the metaldisk E, and the valve E, `and has the clamp nuts E E screwed onto it,one inside the valve and one outside the diaphragm. A furtherbindingdisk, as E5, (shown in Fig. 1,) may be employed outside thediaphragm between it and the nut E; but the use of such binding-disk isa matter of mechanical preference. D2 is the waste or discharge pipefrom the valvechamber D.

To the valve-chamber, as in Fig. l, or to any other convenient point-asthe slab, as in Fig. 2-is secured the bracket, hanger, or standard F,and to this part F is pivoted the lever G, which has a horizontal arm,Cr', upon which is hung and adapted to slide the weight H. This lever isarranged to bear against the end of the valve-stem E, and by the actionof the weight H, hung upon its horizontal arm, to press the valve inwardupon its seat over the mouth of the waste-pipe C, the amount ofpressurein that direction being regulated, as required to accomplish the purposehereinafter described, by sliding the weight H on the said arm of thelever.

To the extreme end of said arm is attached the rod .I,which passes upthrough the slab, and is provided at its upper end with a suitablehandle, J1', and means in connection therewith, whereby said rod, beingpulled up and lifting the outer end of the lever G, may-be fixedtemporarily in such upper position and let down at will to such positionas will permit the valve E to rest upon its seat. The particular meansshown, to which, however,

I do not intend to confine myself, are that the rod .I passes throughthe lever G and turns freely in it, and is provided above the slab Bwith a disk, J, which has one or more, as illustrated two, studs, j,protruded from its lower surface. The slab B has the holes b b, adaptedto receive the studs j j when the disk J is turned, so as to bring thestuds over them. To sustain the valve off its seat, the

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rod J is pulled upward until the studs j are clear of the slab B, andthen turned in either direction, so that the studs j may rest upon theslab asidel from the holes b. To seat the valve, the rod J is turneduntil the holes b trle1 under the studs j and then allowed to As firststated, the ldifference between the forms of my invention illustrated inFigs. l and 2 is that in the former the waste-pipe is formed with aU-trap, C, while in the latter it is without such trap. The form of thelever G is adapted to the different position of the valve E and of thediaphragm which closes the valve-chamber opposite the valve, which'Vresults from making the waste-pipe without trap, being a straight leverof the second class in the form shown in Fig. l, and a bell-crank leverof the first class in Fig. 2; but I do not confine myself to anyparticular form or arrangement of the lever,which may be variedaccording to the situation in which the device is located, and a springmay be substituted for the weight and its pressure regulated in any ofthe familiar methods.

In operation, the weight H is set at such point on the lever-arm G as toretain the valve E on its seat against the pressure of such column ofwater as it is desired to admit to the bowl. Vhen that height isreached, any increase of water will lift the valve and permit the waterto waste, but will not permit it to waste below the determined level.When it is desired to empty the bowl, the lever may be lifted by meansof the rod, whereupon the water will evacuate the bowl, and the leverbeing then allowed to fall, the valve being reseated, will close themouth of the waste-pipe and prevent the passage of sewer-gas.

Vhen the form shown in Fig. l is employed, it is not necessary to dropthe lever after having raised for the purpose of emptying the bowl, butit may be left sustained in the position to retain the valve open. Thetrap C', being now full will while it so remains prevent the return ofsewer gas through the bowl, and should any suction originate beyond thetrap, which would tendto empty it of its water, such suction firstacting to rarefy the air in the valve-chamber will by that means causethe diaphragm E2 to yield and allow the valve, if not already on itsseat, to descend onto its seat, thereby preventing the emptying of thetrap by such means. Should the valve-chamberl) become lled with water,so that the water might be withdrawn from the trap C by siphoning, theeffect will be the same as when a direct suction is exerted upon thewater-viz., that the diaphragm will yield and cause the valve to befirmly seated and retain the water in the trap. A similar result may besecured in the form shown in Fig. 2, or in any form wherein there is noU-trap. By so shaping the diaphragm or so weighting the valve that thevalve shall be normallyV on I its seat without the application of anyexterior pressure, then any suction or tendency to siphoning will seatit firmly as in the case of the form, Fig. l.

It will be seen that the weighted lever and means for operating it maybe omitted and the remainder of the device applied to any bowl havingthe customary plug, and that in that form it will be effective as apreventive of siphoning and return of sewer-gas; also, that acheck-valve may be placed in the waste-pipe or the valve E detached fromthe diaphragm and provided with suitable guides, and thereby made toserve as a check-valve, and thereby, in addition to all the purposesabove enumerated, made to prevent back-water passing into the bowl.

I claiml. In combination with the bowl, the wastepipe leading therefromand having a U-trap and opening within the valve-chamber, thevalve-chamber having an eduction-port, the flexible diaphragm formingpart of the wall inner surface of the diaphragm and adapted to seat overthe open end of the waste-pipe, and an arm exterior to said chamberunder adjustable pressure acting against said diaphragm and removabletherefrom at will, substantially as set forth.

2. In combination with the bowl7 the wastepipe opening within thevalve-chamber and having between the bowl and the valve a water-trap, avalve-chamber having an eductionthe wall of the chamber, the valvesecured on the inner surface ofthe diaphragm and thereby retained seatedover the open end of the waste-pipe, substantially as set forth.

3. In combination with the bowl, the wastepipe opening within thevalve-chamber and having between the bowl and the valve a water-trap,the valve-chamber having an eduction-port, the iiexible diaphragmforming part of the wall of the valve-chamber, the valve secured on theinner surface of the diaphragm, and thereby seated over the mouth of thewastepipe, an arm exterior to said chamber bearing against saiddiaphragm and removable at will, substantially as set forth.

4. In combination with the bowl, the wastepipe opening within thevalve-chamber and having between the bowl and the valve a water-trap,the valve-chamber having an educ.- tion-port, the iiexible diaphragmforming part of the wall of the valve-chamber, the valve secured on theinner surface of the diaphragm, and thereby seated over the mouth of thewaste-pipe, and an arm exterior to said chamber under adjustablepressure bearing against said diaphragm and removable and detainabletherefrom at will, substantially as set forth.

5. In combination, substantially as hereinbefore set forth, the bowl,the valve-chamber,

of the valvechamber, the valve secured on the port, the iexiblediaphragm forming part of the Waste-pipe connecting them, and having Intestimony whereof Ihavehereunto set my l between them the water-trap,the Valve Within hand, in the presence of two witnesses,at0h1 In thevalve-chamber and adapted to close the cago, this 3d day of September,A. D. 1884.

Waste-pipe, the diaphragmforming part of the 5 Wall of the valve-chamberand exteriorly ex- PATRICK HARVEY' posed to atmospheric pressure andacting in- Attest: Wardly to seat 4the valve, substantially as set GHAS.S. BURTON, forth. FRANoIs W. PARKER.

